.px2rem(@name, @px) {
    @{name}: @px / 75 * 1rem;
}
body{
    background-image:url(../images/logo.png);
    background-repeat: no-repeat;
    background-size: 100%; 
   

    
}
.tiao{
    border:1px solid #000;
    padding:2% 3%;
   position: fixed;
   right: 6%;
   top:2%;
   .px2rem(border-radius,20);
}
.box{
  width: 70%;
   text-align:center;
   margin: 20% auto 0;
   color:#f99500;
   .loge,.logs{
    .px2rem(font-size,40);
        font-family: "华文琥珀";
   }
   h1{
   font-family: "华文彩云";
     .px2rem(font-size,78);
     margin: 5% 0;
   }
  i{
     .px2rem(font-size,50);
     margin-top:10%;
   color:#000;
  }
}